16768926783 has 24 divisors (see below), whose sum is σ = 27825488288. Its totient is φ = 9532588032.

The previous prime is 16768926781. The next prime is 16768926787. The reversal of 16768926783 is 38762986761.

It is not a de Polignac number, because 16768926783 - 2¹ = 16768926781 is a prime.

It is a super-2 number, since 2×16768926783² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16768926783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16768926781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 677410 + ... + 701727.

Almost surely, 2^16768926783 is an apocalyptic number.

16768926783 is a deficient number, since it is larger than the sum of its proper divisors (11056561505).

16768926783 is a wasteful number, since it uses less digits than its factorization.

16768926783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379343 (or 1379340 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 16768926783 in words is "sixteen billion, seven hundred sixty-eight million, nine hundred twenty-six thousand, seven hundred eighty-three".